Mechanical drive

the drive system shown in the figure is

• belt drive

• chain drive

• gear drive

• sprocket drive

the instrument shown is :

• Dial Indicator

• adjustable mounting brackets

• Magnetic Base

• Knobs

foundation is the structure that supports machine and designed to perform the function of

• Support the load of the machine without settling

• Maintain the alignment between coupled components

• Absorb any vibrations

• all of the above

lock washer makes sure that

• the nut does not come loose

• the bolt will not pull through the mounting hole.

• flat washer will not damage the bedplate

• the bolt is strong enough

which of the following classes of bolt has a larger value of strength

• 8.8

• 10.9

• 12.9

• 6.6

the least important features considered when selecting a fastener is

• Length

• Diameters

• Class

• washer thickness

Select the fastener size and type for mounting an electric motor in the following application:

Application: Air compressor drive

Duty: medium

Mounting hole size: 24 mm

Flat Washer Thickness: 3 mm

Lock Washer Thickness: 4 mm

Nut Thickness: 16 mm

• M10.8 , 22 mm

• M10.8 19 mm

• M10.8 20

• M10.8 24 mm

calculate the fastener length for mounting an electric motor in the following application.

Application: Air compressor drive

Duty: medium

Mounting hole size: 24 mm

Flat Washer Thickness: 3 mm

Lock Washer Thickness: 4 mm

Nut Thickness: 16 mm

• 106 mm

• 160 mm

• 98

• 102

An uneven mounting surface while mounting the motor will case :

• Soft foot

• Shaft run-out

• Shaft end float

• motor warping

calculate the shaft run-out value if the total indicator reading (TIR) equal = 0.06 mm

• 0.06 mm

• 0.03 mm

• 0.01 mm

• 0.12 mm